What happens to the temperature and thermal energy of water when it is heated in a pot on the stove?
1 answer:
Answer:
Both its temperature and its thermal energy will increase.
Explanation:
Objects are made up of particles. For example, water is made up of water molecules. The kinetic energy of a particle of mass and velocity
is equal to
,
- The thermal energy of an object measures the total kinetic energy of all its particles.
- On the other hand, the temperature of that object measures the average kinetic energy of all these particles.
Water in that pot gains energy when the pot is heated. That would increase the total kinetic energy of these water molecules.
What about temperature? Assume that the number of water particles in the pot stays the same- In other words, assume that water in the pot does not evaporate. As the total kinetic energy of these water molecules increase, their average kinetic energy would also increase. As a result, it would appear that the temperature of water in that pot has increased.
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Answer:
50 meters
Explanation:
Let's start by converting to m/s. There are 3600 seconds in an hour and 1000 meters in a kilometer, meaning that 72km/h is 20m/s.
Since the car starts at rest, you can write the following equation:
Now that you have the acceleration, you can do this:
Once again, there is no initial velocity:
Hope this helps!
The gravitational force exerted by the earth on a person standing on the earth's surface is 602.74 N.
<h3>What is the gravitational force of the earth on the person?</h3>The gravitational force exerted by the earth on a person standing on the earth's surface is given below as follows:
where
G = 6.67 * 10⁻¹¹
m¹ = 62 kg
m² = 5.97 * 10²⁷ kg
r = 6.4 * 10⁶ m
Therefore, the gravitational force exerted by the earth on a person standing on the earth's surface is 602.74 N.
Learn more about gravitational force at: brainly.com/question/940770
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